Mario isn't the most story-telling series, but even so, a long-running series like this inevitably has some gaps in its lore.

The Mario series is one of the most popular games in video game history. Super Mario Bros. launched a whole new genre that is still going strong today, with 3D platformers in the Mario series becoming richer and more popular. Given the tight gameplay of the series, most people think of the story as just a way to push the gameplay forward.

However, the illustrious history of the Mario series means that some die-hard fans are bound to question some of the world's dubious legends. Here are some of the biggest inconsistencies and plot holes plaguing the Mario series.